Home / 68,253.12-102,393.60-38,684.16

Finding the Fourth Proportional to 68,253.12, 102,393.60 and 38,684.16

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Solution

The fourth proportional to 68,253.12, 102,393.60 and 38,684.16 is: 58,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,253.12 : 102,393.60 = 38,684.16 : x
  2. Step 2: Convert to fraction form
    68,253.12/102,393.60 = 38,684.16/x
  3. Step 3: Cross multiply
    68,253.12x = 102,393.60 × 38,684.16
  4. Step 4: Simplify right side
    68,253.12x = 3,961,010,405.38
  5. Step 5: Solve for x
    x = 3,961,010,405.38/68,253.12
  6. Step 6: Final answer
    x = 58,034.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.